Bestimmung von Steuerbefehlen für einen Motor einer Laserschneidmaschine

Details

Veröffentlichungs-Nr.

EP4764743

Anmeldetag

20. Dezember 2024

Veröffentlichung

24. Juni 2026

Rechtsraum

EP

Abstract

The patent application pertains to a method for determining control commands for driving an electrical drive of a laser processing machine. The method involves receiving specifications from a cutting plan, including an intended trajectory, and providing a machine model that represents the dynamic behavior of the electrical drive. An adapted model predictive control (MPC) algorithm is applied based on the provided machine model and the received specifications to predict the future dynamic behavior of the electrical drive, particularly a predicted trajectory, within a pre-determined prediction horizon. The predicted trajectory is compared with the intended trajectory to determine control commands for the electrical drive. These determined control commands are then provided on a control interface. The machine model is generated in a preparation phase using measurement data from the machine, particularly a position feedback signal. The MPC algorithm is adapted to include constraints on the parameters of the differential equations, particularly on the motor current, and to have a prediction horizon equal to the control horizon. The method allows for precise and repeatable movements of the laser beam along predetermined paths, improving the quality of the processed material.

Anmelder

Firma

Bystronic Laser AG

Land

🇨🇭 Schweiz